# -*- coding: utf-8 -*-#
#-------------------------------------------------------------------------------
# 建立者:       加一
# Name:         demo4.20
# Description:  通过字符串和数字相乘，复制字符串；通过将序列与数字相乘，复制序列
# Author:       加一
# Date:         2019/2/26
#-------------------------------------------------------------------------------

print('hello' * 5)
print([20] * 10)
print([None] * 6)
